1
|
Diagnostic Accuracy of Caries and Periapical Lesions on a Monitor with and without DICOM-GSDF Calibration Under Different Ambient Light Conditions. J Digit Imaging 2022; 35:654-659. [PMID: 35166971 PMCID: PMC9156603 DOI: 10.1007/s10278-022-00596-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 01/21/2022] [Accepted: 01/28/2022] [Indexed: 12/15/2022] Open
Abstract
To evaluate the diagnostic accuracy of caries and periapical lesions on a monitor with and without DICOM part 14: grayscale standard display function (DICOM-GSDF) calibration under different ambient light conditions. Forty digital bitewing radiographs were selected, with or without radiographic images of carious lesions and forty digital periapical radiographs with or without periapical lesions were selected from archives of the Radiology Department at the University Hospital of the Federal University of Sergipe. The gold standard radiographic images were determined through consensus between two radiologists with more than 15 and 30 years of experience. The selected radiographs were evaluated on a LG LED monitor with and without DICOM-GSDF calibration under different ambient light conditions: Lx1 (low ambient lighting), Lx2 (moderate ambient lighting) and Lx3 (high ambient lighting). Kappa (Kw) values determined that evaluator 1 showed almost perfect agreement for all devices, while evaluator 2 presented a substantial agreement for all devices. Monitors with and without DICOM-GSDF calibration have similar accuracy values. The three ambient light conditions analyzed have similar accuracy and can be used for caries lesions diagnosis (p > 0.05); however, the best diagnostic accuracy of periapical lesions was found in Lx 2. The displays with and without DICOM-GSDF calibration studied in this research have similar accuracy and can be used to evaluate digital radiographs without changing the diagnostic capacity. The different ambient lighting conditions did not influence the evaluation of caries lesions. The best diagnostic accuracy of periapical lesions was found in moderate ambient lighting.
Collapse
|
2
|
Moreira-Souza L, Gaêta-Araujo H, Lima CADS, Brasil DM, Costa ED, Oliveira ML, Freitas DQ. Influence of different viewing conditions on the detection of fractured endodontic instruments using periapical radiographs at 3 projection angles. Oral Surg Oral Med Oral Pathol Oral Radiol 2021; 132:744-750. [PMID: 34272189 DOI: 10.1016/j.oooo.2021.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 05/12/2021] [Accepted: 05/23/2021] [Indexed: 10/21/2022]
Abstract
OBJECTIVES The objective of this study was to assess the influence of ambient lighting levels and horizontal viewing angle (HVA) on the radiographic detection of fractured endodontic instruments in root canals in extracted human mandibular molars. STUDY DESIGN Thirty-two root canals were selected. Endodontic instrument fracture was induced in 24 canals, and all canals were endodontially treated. Periapical radiographs were obtained at orthoradial, mesioradial, and distoradial projection angles. Five oral radiologists examined the radiographs for detection of fractured endodontic instruments under 3 ambient lighting levels (high, 450 lux; medium, 28 lux; and low, 2.5 lux) and 3 HVAs (90°, 67.5°, and 45°). Area under the receiver operating characteristic curve (AUROC), accuracy, sensitivity, and specificity were calculated and compared by 2-way analysis of variance using Tukey post hoc tests (α = .05). RESULTS AUROC data indicated that ambient lighting (P = .739) and HVA (P = .238) did not significantly influence the detection of fractured endodontic instruments. Overall mean diagnostic values were 0.745, 0.57, 0.46, and 0.90 for AUROC, accuracy, sensitivity, and specificity, respectively. CONCLUSIONS The viewing conditions assessed in this study did not influence the radiographic detection of fractured endodontic instruments in root canals.
Collapse
Affiliation(s)
- Larissa Moreira-Souza
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil.
| | - Hugo Gaêta-Araujo
- Division of Oral Radiology, School of Dentistry, Federal University of Alfenas (UNIFAL-MG), Minas Gerais, Brazil
| | - Carlos Augusto de Souza Lima
- Division of Oral Radiology, Faculdade São Leopoldo Mandic, Instituto de Pesquisas São Leopoldo Mandic, Campinas, São Paulo, Brazil; Department of Stomatology, Public Health and Forensic Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo (USP), Ribeirão Preto, São Paulo, Brazil
| | - Danieli Moura Brasil
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
| | - Eliana Dantas Costa
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
| | - Matheus L Oliveira
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
| | - Deborah Queiroz Freitas
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
| |
Collapse
|
3
|
Hastie T, Venske-Parker S, Aps JKM. Impact of viewing conditions on the performance assessment of different computer monitors used for dental diagnostics. Imaging Sci Dent 2021; 51:137-148. [PMID: 34235059 PMCID: PMC8219454 DOI: 10.5624/isd.20200182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 11/06/2020] [Accepted: 11/17/2020] [Indexed: 11/18/2022] Open
Abstract
Purpose This study aimed to assess the computer monitors used for analysis and interpretation of digital radiographs within the clinics of the Oral Health Centre of Western Australia. Materials and Methods In total, 135 computer monitors (3 brands, 6 models) were assessed by analysing the same radiographic image of a combined 13-step aluminium step wedge and the Artinis CDDent 1.0® (Artinis Medical Systems B.V.®, Elst, the Netherlands) test object. The number of steps and cylindrical objects observed on each monitor was recorded along with the monitor's make, model, position relative to the researcher's eye level, and proximity to the nearest window. The number of window panels blocked by blinds, the outside weather conditions, and the number of ceiling lights over the surgical suite/cubicle were also recorded. MedCalc® version 19.2.1 (MedCalc Software Ltd®, Ostend, Belgium, https://www.medcalc.org; 2020) was used for statistical analyses (Kruskal-Wallis test and stepwise regression analysis). The level of significance was set at P<0.05. Results Stepwise regression analysis showed that only the monitor brand and proximity of the monitor to a window had a significant impact on the monitor's performance (P<0.05). The Kruskal-Wallis test showed significant differences (P<0.05) in monitor performance for all variables investigated, except for the weather and the clinic in which the monitors were placed. Conclusion The vast performance variation present between computer monitors implies the need for a review of monitor selection, calibration, and viewing conditions.
Collapse
Affiliation(s)
- Thomas Hastie
- University of Western Australia, Dental School and Oral Health Centre of Western Australia, Nedlands, Australia
| | - Sascha Venske-Parker
- University of Western Australia, Dental School and Oral Health Centre of Western Australia, Nedlands, Australia
| | - Johan K M Aps
- School of Oral Hygiene, Artevelde University of Applied Sciences, Gent, Belgium
| |
Collapse
|
4
|
Shujaat S, Letelier C, De Grauwe A, Desard H, Orhan K, Vasconcelos KDF, Mangione F, Coucke W, Jacobs R. The influence of image display systems on observers' preference for visualizing subtle dental radiographic abnormalities. Oral Surg Oral Med Oral Pathol Oral Radiol 2020; 132:475-482. [PMID: 33495123 DOI: 10.1016/j.oooo.2020.12.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Revised: 12/12/2020] [Accepted: 12/23/2020] [Indexed: 11/28/2022]
Abstract
OBJECTIVE The objectives of this study were to assess observers' preference for standard screens (SSs) or medical displays (MDs) in visualizing difficult-to-diagnose radiographic dental abnormalities and their preference for dental filter tools when utilized with MD systems. STUDY DESIGN A retrospective data set of 60 in vivo radiographs consisting of intraoral (n = 20), panoramic (n = 20), and cone beam computed tomography (n = 20) images was created. Three image display monitors, including an SS, an MD, and an MD with 3 dental filter configurations (bone-low density enhancement filter, tooth-high density enhancement filter, and a combined filter representing regular MD), were utilized to assess 4 observers' monitor preferences in detecting radiographically subtle dental abnormalities. The data were analyzed by using binomial distribution. A P value ≤.05 was considered statistically significant. RESULTS Although observers expressed preference for MD for visualizing some abnormalities when examining intraoral and panoramic radiographs, MD was not preferred for detection of any abnormalities with cone beam computed tomography. There were no significant differences in preference for SS or MD overall (P ≥ .2024). Observers expressed significant preference for the filters in visualizing all but 2 abnormalities (P ≤ .0252). CONCLUSIONS The use of MD monitors enabled with dental filter tools may be preferred for visualizing certain subtle abnormalities.
Collapse
Affiliation(s)
- Sohaib Shujaat
- OMFS-IMPATH Research Group, Department of Imaging & Pathology, Faculty of Medicine, KU Leuven & Oral and Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium.
| | - Carolina Letelier
- OMFS-IMPATH Research Group, Department of Imaging & Pathology, Faculty of Medicine, KU Leuven & Oral and Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Annelore De Grauwe
- OMFS-IMPATH Research Group, Department of Imaging & Pathology, Faculty of Medicine, KU Leuven & Oral and Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Hadewych Desard
- OMFS-IMPATH Research Group, Department of Imaging & Pathology, Faculty of Medicine, KU Leuven & Oral and Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Kaan Orhan
- OMFS-IMPATH Research Group, Department of Imaging & Pathology, Faculty of Medicine, KU Leuven & Oral and Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Karla de Faria Vasconcelos
- OMFS-IMPATH Research Group, Department of Imaging & Pathology, Faculty of Medicine, KU Leuven & Oral and Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium
| | - Francesca Mangione
- OMFS-IMPATH Research Group, Department of Imaging & Pathology, Faculty of Medicine, KU Leuven & Oral and Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium; Oral Pathology and Surgery Department & Orofacial Pathologies, Imaging and Biotherapies (EA2496), Faculty of Dental Surgery, Paris Descartes University, Paris, France
| | - Wim Coucke
- Scientific Institute of Public Health, Department of Quality of Medical Laboratories, Brussels, Belgium
| | - Reinhilde Jacobs
- OMFS-IMPATH Research Group, Department of Imaging & Pathology, Faculty of Medicine, KU Leuven & Oral and Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium; Department of Dental Medicine, Karolinska Institutet, Stockholm, Sweden
| |
Collapse
|
5
|
Aziman C, Hellén-Halme K, Shi XQ. A comparative study on image quality of two digital intraoral sensors. Dentomaxillofac Radiol 2019; 48:20190063. [PMID: 31075041 PMCID: PMC6775787 DOI: 10.1259/dmfr.20190063] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 04/30/2019] [Accepted: 05/05/2019] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES The aims of this study were to evaluate the subjective image quality and reliability of two digital sensors. In addition, the image quality of the two sensors evaluated by specialists and general dentists were compared. METHODS 30 intraoral bitewings from five patients were included in the study, 15 were exposed with a Dixi sensor (CCD-based) and 15 with a ProSensor (CMOS-based) using modified parallel technique. Three radiologists and three general dentists evaluated the images in pair. A five-point scale was used to register the image quality. Visual grading characteristics (VGC) analysis was performed to compare the image quality and the observer agreement was assessed in terms of intra class correlation co-efficient. RESULTS No statistically significant difference was found on image quality between the sensors. The average scores of the observer agreement were moderate with an average of 0.66 and an interval of 0.30 to 0.87, suggesting that there was a large variation on preference of image quality. However, there was a statistically significant difference in terms of the area under the VGC- curves between the specialist group and the general dentist group ( p = 0.043), in which the specialist group tended to favor the ProSensor. CONCLUSIONS Subjective image quality of the two intraoral sensors were comparable when evaluated by both general and oral radiologists. However, the radiologists seemed to prefer the ProSensor to the Dixi as compared to general dentists. Inter- observer conformance showed a large variation on the preference of the image quality.
Collapse
Affiliation(s)
- Cinar Aziman
- Section of Oral Diagnostics and Surgery, Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Kristina Hellén-Halme
- Department of Oral and Maxillofacial Radiology, Faculty of Odontology, Malmö University, Malmö, Sweden
| | | |
Collapse
|
6
|
Lima CAS, Nascimento EHL, Gaêta-Araujo H, Oliveira-Santos C, Freitas DQ, Haiter-Neto F, Oliveira ML. Is the digital radiographic detection of approximal caries lesions influenced by viewing conditions? Oral Surg Oral Med Oral Pathol Oral Radiol 2019; 129:165-170. [PMID: 31474575 DOI: 10.1016/j.oooo.2019.08.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 07/04/2019] [Accepted: 08/03/2019] [Indexed: 10/26/2022]
Abstract
OBJECTIVES The aim of this study was to assess the influence of different viewing conditions (combinations of computer display, horizontal viewing angle, and ambient lighting) on the detection of approximal caries lesions on digital radiographic images. STUDY DESIGN Forty posterior teeth were mounted in a plaster block and radiographed by using a CMOS sensor-based system. Three oral radiologists assessed the radiographic images under different conditions of computer display (iMac 5K 27", Barco MDRC-2124, and Dell P2314H), horizontal viewing angles (90 degrees, 67.5 degrees, and 45 degrees), and ambient lighting (low, medium, and high) and were asked to detect the presence of approximal caries lesions, which were confirmed by means of micro-computed tomography (micro-CT), using a 5-point scale. The area under the receiver operating characteristic curve, sensitivity, and specificity were calculated and compared by analysis of variance testing (α = 0.05). Intra- and interobserver agreements were assessed with the Kappa test. RESULTS Computer display, horizontal viewing angle, and ambient lighting did not significantly influence the diagnosis of approximal caries lesions. In general, moderate values of accuracy, low sensitivity, and high specificity were found for all viewing conditions. CONCLUSIONS The viewing conditions assessed in this study did not influence the detection of approximal caries lesions on digital radiographic images. Dental practitioners are encouraged to find their most comfortable viewing condition for this diagnostic task.
Collapse
Affiliation(s)
- Carlos Augusto Souza Lima
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil
| | - Eduarda Helena Leandro Nascimento
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil
| | - Hugo Gaêta-Araujo
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil
| | - Christiano Oliveira-Santos
- Department of Stomatology, Division of Oral Radiology, School of Dentistry of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, São Paulo, Brazil
| | - Deborah Queiroz Freitas
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil
| | - Francisco Haiter-Neto
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil
| | - Matheus Lima Oliveira
- Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil.
| |
Collapse
|
7
|
Ferreira LM, Queiroz PM, Santaella GM, Wenzel A, Groppo FC, Haiter-Neto F. The influence of different scan resolutions on the detection of proximal caries lesions. Imaging Sci Dent 2019; 49:97-102. [PMID: 31281786 PMCID: PMC6597374 DOI: 10.5624/isd.2019.49.2.97] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 02/03/2019] [Accepted: 02/15/2019] [Indexed: 11/24/2022] Open
Abstract
Purpose This study was conducted to evaluate the effect of different spatial resolutions of a photostimulable phosphor plate (PSP) radiography system on the detection of proximal caries lesions. Materials and Methods Forty-five extracted human permanent teeth were radiographed using a PSP system (VistaScan Perio Plus) and scanned at the 4 resolutions (10 lp/mm, 20 lp/mm, 25 lp/mm, and 40 lp/mm) available in the system. Three independent examiners scored the images for the presence and absence of proximal caries lesions using a 5-point scale. The presence or absence of caries was confirmed by histological sections of the examined teeth (defined as the gold standard). Intra- and inter-observer reproducibility was calculated by the weighted kappa test. One-way analysis of variance with the post hoc Tukey test was used to compare the area under the receiver operating characteristic curve for the classifications made with each resolution. Results For the detection of enamel lesions, the spatial resolution of 10 lp/mm was significantly superior to the other resolutions. However, the spatial resolution did not affect the detection of caries lesions in dentin (P>0.05). Conclusion Spatial resolution may influence the accuracy of the detection of incipient caries lesions in radiographs with PSP plates. Images with low spatial resolution seem to be more appropriate for this purpose.
Collapse
Affiliation(s)
- Liana Matos Ferreira
- Division of Oral Radiology, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil
| | - Polyane Mazucatto Queiroz
- Division of Oral Radiology, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil
| | - Gustavo Machado Santaella
- Division of Oral Radiology, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil
| | - Ann Wenzel
- Section of Oral Radiology, Department of Dentistry and Oral Health, University of Aarhus, Aarhus, Denmark
| | - Francisco Carlos Groppo
- Division of Pharmacology, Department of Physiological Sciences, Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil
| | - Francisco Haiter-Neto
- Division of Oral Radiology, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, São Paulo, Brazil
| |
Collapse
|
8
|
Lima CAS, Freitas DQ, Ambrosano GMB, Haiter-Neto F, Oliveira ML. Influence of interpretation conditions on the subjective differentiation of radiographic contrast of images obtained with a digital intraoral system. Oral Surg Oral Med Oral Pathol Oral Radiol 2019; 127:444-450. [PMID: 30738753 DOI: 10.1016/j.oooo.2019.01.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 12/24/2018] [Accepted: 01/01/2019] [Indexed: 11/19/2022]
Abstract
OBJECTIVES The aim of this study was to evaluate interpretation conditions in the subjective in vitro assessment of dental tissue-equivalent radiographic contrast. STUDY DESIGN Radiographic images with the density of dental structures were randomized and arranged in 20 sequences with images juxtaposed and separated. Twelve observers interpreted the sequence among the most radiolucent and radiopaque images with 3 displays, 3 horizontal viewing angles, and 3 ambient light conditions. The evaluation time was recorded. The hit percentage was calculated for each evaluation. Three-way analysis of variance with Tukey's test was used to compare the conditions of interpretation. The intraclass correlation coefficient was used to assess agreement (α = 0.05). RESULTS No differences in hit percentages were found among the 3 displays or among the juxtaposed and separated images. Increased hit percentages were recorded for images assessed at 90° compared with 45° for all displays and in high ambient light vs intermediate and low light at 90°. Increased evaluation time was recorded for the consumer-grade display under high ambient light and for the separated images. CONCLUSIONS The subjective in vitro assessment of dental tissue-equivalent radiographic contrast is not influenced by computer display, which should be viewed at a horizontal viewing angle of 90° and under high ambient light. Longer evaluation times may be expected with consumer-grade displays.
Collapse
Affiliation(s)
- Carlos Augusto Souza Lima
- Division of Oral Radiology, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Deborah Queiroz Freitas
- Division of Oral Radiology, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | | | - Francisco Haiter-Neto
- Division of Oral Radiology, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Matheus Lima Oliveira
- Division of Oral Radiology, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil.
| |
Collapse
|
9
|
Adibi S, Amrollahi A, Dehghani Nazhvani A, Movahhedian N. Assessing the Accuracy of Caries Diagnosis in Bitewing Radiographs Using Different Reproduction Media. JOURNAL OF DENTISTRY (SHIRAZ, IRAN) 2018; 19:174-180. [PMID: 30175186 PMCID: PMC6092465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
STATEMENT OF THE PROBLEM After introducing digital radiography, practitioners started reading radiographs from computer monitors; however, many still prefer hard-copy radiographs. PURPOSE This study aimed to assess the possible superiority of either type of radiograph recording media (computer monitor, film, or paper) in diagnosis and perception of the depth of the cariogenic lesions. MATERIALS AND METHOD Twenty digital bitewing radiographs, obtained from 200 posterior extracted teeth, were displayed on an LG monitor and printed on paper and film using Kodak printers. Two observers independently measured lesions depth on the images. Serial sections of teeth were obtained and the sections were evaluated by a stereomicroscope to determine the actual depth of cariogenic lesions. The efficacy of the each medium was assessed by determining its specificity and sensitivity in comparison with those of histological images. Weighted kappa coefficients and the ROC analysis were used for the statistical analysis. RESULTS Strong intra- and inter-observer agreements (0.818 to 0.958, 0.77 to 0.85) were found for all detection methods. The highest Az value was obtained with the monitor-displayed images (Az: 0.879); however, differences between detection methods were not statistically significant (p> 0.05). CONCLUSION Monitor-displayed bitewing radiographs, paper, and film prints used in our study performed similarly in the detection of proximal caries.
Collapse
Affiliation(s)
- Sadaf Adibi
- Dept. of Oral and Maxillofacial Radiology, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Anita Amrollahi
- Undergraduate Student, School of Dentistry, International branch, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Ali Dehghani Nazhvani
- Dept. of Oral and Maxillofacial Pathology, Biomaterial Research Center, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Najmeh Movahhedian
- Dept. of Oral and Maxillofacial Radiology, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran
| |
Collapse
|
10
|
Ohla H, Dagassan-Berndt D, Payer M, Filippi A, Schulze RKW, Kühl S. Role of ambient light in the detection of contrast elements in digital dental radiography. Oral Surg Oral Med Oral Pathol Oral Radiol 2018; 126:439-443. [PMID: 30228056 DOI: 10.1016/j.oooo.2018.08.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 06/24/2018] [Accepted: 08/10/2018] [Indexed: 11/30/2022]
Abstract
OBJECTIVE This study aimed to evaluate the effect of different ambient light levels on observer detection of small contrast differences in a contrast phantom by using a high-end liquid crystal display (LCD) monitor. STUDY DESIGN An aluminum step wedge was converted into a contrast phantom by the addition of bore holes. Radiographic images of the contrast elements were presented to 20 observers. Images were displayed in random order under different ambient light levels (0, 50, 200, and 500 lux) twice, and the observers had to determine if contrast elements were visible. Sensitivity and specificity were determined to calculate areas under receiver operating characteristic curves and Friedmann's test was applied to evaluate the influence of the ambient light level on observer performance. RESULTS Mean AZ values were moderate for each ambient light level at 0.715, 0.793, 0.764, and 0.722 for 0, 50, 200, and 500 lux, respectively. The influence of the ambient light level on observer performance was not statistically significant (P > .05). CONCLUSIONS There was no significant influence of ambient light between 0 and 500 lux on observer ability to detect small contrast details displayed on a high-end LCD monitor.
Collapse
Affiliation(s)
- Harald Ohla
- University Center for Dental Medicine Basel, University of Basel, Basel, Switzerland
| | - Dorothea Dagassan-Berndt
- Department for Oral Surgery, Oral Radiology and Oral Medicine, University Center for Dental Medicine Basel, University of Basel, Basel, Switzerland
| | - Michael Payer
- Assistant Professor, Department of Oral Surgery and Radiology, School of Dentistry, Medical University of Graz, Auenbruggerplatz 12, Austria
| | - Andreas Filippi
- Professor, Department for Oral Surgery, Oral Radiology and Oral Medicine, University Center for Dental Medicine Basel, University of Basel, Basel, Switzerland
| | - Ralf Kurt Willy Schulze
- Professor, Department of Oral Surgery and Oral Radiology, University Medical Center of the Johannes Gutenberg University Mainz, Augustusplatz 2, Mainz, Germany
| | - Sebastian Kühl
- Department for Oral Surgery, Oral Radiology and Oral Medicine, University Center for Dental Medicine Basel, University of Basel, Basel, Switzerland.
| |
Collapse
|
11
|
Nascimento EH, Gaêta-Araujo H, Vasconcelos KF, Freire BB, Oliveira-Santos C, Haiter-Neto F, Freitas DQ. Influence of brightness and contrast adjustments on the diagnosis of proximal caries lesions. Dentomaxillofac Radiol 2018; 47:20180100. [PMID: 29851369 DOI: 10.1259/dmfr.20180100] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES To assess the influence of brightness and contrast adjustments of digital radiographs on the diagnosis of proximal caries lesions, and to compare with observers' preferences for subjective image quality. METHODS 80 proximal surfaces of posterior teeth were radiographed using an intraoral digital system (Digora Toto, Soredex, Finland). Initial images and four different combinations of brightness and contrast for each radiography were analysed. Five observers scored the images for the presence and extension of caries lesions. Micro-CT images were used as gold standard. In a second stage, the observers were asked which of the radiographs they preferred for the assessment of caries lesions. RESULTS No differences were found between the original and adjusted radiographic images regarding the area under the receiver operating characteristic curve, sensitivity, and specificity (p > 0.05). There was a significant difference between the micro-CT and the intraoral radiographs (p < 0.0001). Images with high brightness and low contrast presented higher number of true negative cases, but also a decrease in caries detection. On the other hand, there were more cases of overestimation of the presence and extension of caries lesions in images with low brightness and high contrast. The subjective evaluation of image quality showed that radiographs with lower brightness and higher contrast tended to be preferred by observers. CONCLUSIONS Brightness and contrast adjustments in digital intraoral radiographs within the range tested in this study do not significantly influence the diagnosis of proximal caries lesions, although observers tend to prefer lower brightness and higher contrast images.
Collapse
Affiliation(s)
- Eduarda Hl Nascimento
- 1 Division of Oral Radiology, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas (UNICAMP) , São Paulo , Brazil
| | - Hugo Gaêta-Araujo
- 1 Division of Oral Radiology, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas (UNICAMP) , São Paulo , Brazil
| | - Karla F Vasconcelos
- 1 Division of Oral Radiology, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas (UNICAMP) , São Paulo , Brazil
| | - Bernardo B Freire
- 1 Division of Oral Radiology, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas (UNICAMP) , São Paulo , Brazil
| | - Christiano Oliveira-Santos
- 2 Division of Oral Radiology, Department of Stomatology, School of Dentistry of Ribeirao Preto, University of Sao Paulo (USP) , São Paulo , Brazil
| | - Francisco Haiter-Neto
- 1 Division of Oral Radiology, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas (UNICAMP) , São Paulo , Brazil
| | - Deborah Q Freitas
- 1 Division of Oral Radiology, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas (UNICAMP) , São Paulo , Brazil
| |
Collapse
|
12
|
Countryman SC, Sousa Melo SL, Belem MDF, Haiter-Neto F, Vargas MA, Allareddy V. Performance of 5 different displays in the detection of artificial incipient and recurrent caries-like lesions. Oral Surg Oral Med Oral Pathol Oral Radiol 2018; 125:182-191. [DOI: 10.1016/j.oooo.2017.11.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 10/27/2017] [Accepted: 11/04/2017] [Indexed: 10/18/2022]
|
13
|
Baltacıoĝlu İH, Eren H, Yavuz Y, Kamburoğlu K. Diagnostic accuracy of different display types in detection of recurrent caries under restorations by using CBCT. Dentomaxillofac Radiol 2016; 45:20160099. [PMID: 27319604 DOI: 10.1259/dmfr.20160099] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES To assess the in vitro diagnostic ability of CBCT images using seven different display types in the detection of recurrent caries. METHODS Our study comprised 128 extracted human premolar and molar teeth. 8 groups each containing 16 teeth were obtained as follows: (1) Black Class I (Occlusal) amalgam filling without caries; (2) Black Class I (Occlusal) composite filling without caries; (3) Black Class II (Proximal) amalgam filling without caries; (4) Black Class II (Proximal) composite filling without caries; (5) Black Class I (Occlusal) amalgam filling with caries; (6) Black Class I (Occlusal) composite filling with caries; (7) Black Class II (Proximal) amalgam filling with caries; and (8) Black Class II (Proximal) composite filling with caries. Teeth were imaged using 100 × 90 mm field of view at three different voxel sizes of a CBCT unit (Planmeca ProMax(®) 3D ProFace™; Planmeca, Helsinki, Finland). CBCT TIFF images were opened and viewed using custom-designed software for computers on different display types. Intra- and interobserver agreements were calculated. The highest area under the receiver operating characteristic curve (Az) values for each image type, observer, reading and restoration were compared using z-tests against Az = 0.5. The significance level was set at p = 0.05. RESULTS We found poor and moderate agreements. In general, Az values were found when software and medical diagnostic monitor were utilized. For Observer 2, Az values were statistically significantly higher when software was used on medical monitor [p = 0.036, p = 0.015 and p = 0.002, for normal-resolution mode (0.200 mm(3) voxel size), high-resolution mode (0.150 mm(3) voxel size) and low-resolution mode (0.400 mm(3) voxel size), respectively]. No statistically significant differences were found among other display types for all modes (p > 0.05). In general, no difference was found among 3 different voxel sizes (p > 0.05). In general, higher Az values were obtained for composite restorations than for amalgam restorations for all observers. For Observer 1, Az values for composite restorations were statistically significantly higher than those of amalgam restorations for MacBook and iPhone (Apple Inc., Cupertino, CA) assessments (p = 0.002 and p = 0.048, respectively). CONCLUSIONS Higher Az values were observed with medical monitors when used with dedicated software compared to other display types which performed similarly in the diagnosis of recurrent caries under restorations. In addition, observers performed better in detection of recurrent caries when assessing composite restorations than amalgams.
Collapse
Affiliation(s)
- İsmail H Baltacıoĝlu
- 1 Ankara University, Faculty of Dentistry, Department of Restorative Dentistry, Ankara, Turkey
| | - Hakan Eren
- 2 Ankara University, Faculty of Dentistry, Department of Dentomaxillofacial Radiology, Ankara, Turkey
| | - Yasemin Yavuz
- 3 Ankara University, Faculty of Medicine, Department of Biostatistics, Ankara, Turkey
| | - Kıvanç Kamburoğlu
- 2 Ankara University, Faculty of Dentistry, Department of Dentomaxillofacial Radiology, Ankara, Turkey
| |
Collapse
|
14
|
Tadinada A, Mahdian M, Sheth S, Chandhoke TK, Gopalakrishna A, Potluri A, Yadav S. The reliability of tablet computers in depicting maxillofacial radiographic landmarks. Imaging Sci Dent 2015; 45:175-80. [PMID: 26389060 PMCID: PMC4574055 DOI: 10.5624/isd.2015.45.3.175] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Revised: 06/02/2015] [Accepted: 06/21/2015] [Indexed: 11/23/2022] Open
Abstract
Purpose This study was performed to evaluate the reliability of the identification of anatomical landmarks in panoramic and lateral cephalometric radiographs on a standard medical grade picture archiving communication system (PACS) monitor and a tablet computer (iPad 5). Materials and Methods A total of 1000 radiographs, including 500 panoramic and 500 lateral cephalometric radiographs, were retrieved from the de-identified dataset of the archive of the Section of Oral and Maxillofacial Radiology of the University Of Connecticut School Of Dental Medicine. Major radiographic anatomical landmarks were independently reviewed by two examiners on both displays. The examiners initially reviewed ten panoramic and ten lateral cephalometric radiographs using each imaging system, in order to verify interoperator agreement in landmark identification. The images were scored on a four-point scale reflecting the diagnostic image quality and exposure level of the images. Results Statistical analysis showed no significant difference between the two displays regarding the visibility and clarity of the landmarks in either the panoramic or cephalometric radiographs. Conclusion Tablet computers can reliably show anatomical landmarks in panoramic and lateral cephalometric radiographs.
Collapse
Affiliation(s)
- Aditya Tadinada
- Section of Oral and Maxillofacial Radiology, Department of Oral Health and Diagnostic Sciences, University of Connecticut School of Dental Medicine, Farmington, CT, USA
| | - Mina Mahdian
- Section of Oral and Maxillofacial Radiology, Department of Oral Health and Diagnostic Sciences, University of Connecticut School of Dental Medicine, Farmington, CT, USA
| | - Sonam Sheth
- University of Connecticut School of Dental Medicine, Farmington, CT, USA
| | - Taranpreet K Chandhoke
- Department of Craniofacial Sciences, University of Connecticut School of Dental Medicine, Farmington, CT, USA
| | - Aadarsh Gopalakrishna
- Section of Operative Dentistry, Department of Reconstructive Sciences, University of Connecticut School of Dental Medicine, Farmington, CT, USA
| | - Anitha Potluri
- Department of Diagnostic Sciences, University of Pittsburgh School of Dentistry, Pittsburgh, PA, USA
| | - Sumit Yadav
- Section of Orthodontics, Department of Craniofacial Sciences, University of Connecticut School of Dental Medicine, Farmington, CT, USA
| |
Collapse
|
15
|
Kallio-Pulkkinen S, Huumonen S, Haapea M, Liukkonen E, Sipola A, Tervonen O, Nieminen MT. Effect of display type, DICOM calibration and room illuminance in bitewing radiographs. Dentomaxillofac Radiol 2015; 45:20150129. [PMID: 26234536 PMCID: PMC5083887 DOI: 10.1259/dmfr.20150129] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 07/02/2015] [Accepted: 07/31/2015] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES To compare observer performance in the detection of both anatomical structures and caries in bitewing radiographs using consumer grade displays with and without digital imaging and communications in medicine (DICOM) calibration, tablets (third generation iPad; Apple, Cupertino, CA) and 6-megapixel (MP) displays under different lighting. METHODS 30 bitewing radiographs were blindly evaluated on four displays under bright (510 lx) and dim (16 lx) ambient lighting by two observers. The dentinoenamel junction, enamel and dentinal caries, and the cortical border of the alveolar crests were evaluated. Consensus was considered as reference. Intraobserver agreement was determined. The proportion of equivalent ratings and weighted kappa were used to assess reliability. RESULTS The proportion of equivalent ratings with consensus differed significantly between uncalibrated and DICOM-calibrated consumer grade display in enamel caries in upper and lower molars in bright (p = 0.013 and p = 0.003) lighting, and in dentinal caries in lower molars in both bright (p = 0.022) and dim (p = 0.004) lighting. The proportion also differed significantly between DICOM-calibrated consumer grade and 6-MP display in dentinal caries in lower molars in bright lighting (p = 0.039), tablet and consumer grade display in enamel caries in upper molars (p = 0.017) in bright lighting, tablet and 6-MP display in dentinal caries in lower molars (p = 0.003) in bright lighting and in enamel caries in lower molars (p = 0.012) in dim lighting. CONCLUSIONS DICOM calibration improves the detection of enamel and dentinal caries in bitewing radiographs, particularly in bright lighting. Therefore, a calibrated consumer grade display can be recommended as a diagnostic tool for viewing bitewing radiographs.
Collapse
Affiliation(s)
- Soili Kallio-Pulkkinen
- Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland
- Medical Research Center Oulu, Oulu University Hospital, and University of Oulu, Oulu, Finland
| | - Sisko Huumonen
- Department of Oral Pathology and Radiology, Institute of Dentistry, University of Turku, Turku, Finland
- Department of Diagnostic Imaging, Turku University Hospital, Turku, Finland
| | - Marianne Haapea
- Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland
- Medical Research Center Oulu, Oulu University Hospital, and University of Oulu, Oulu, Finland
| | - Esa Liukkonen
- Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland
- Medical Research Center Oulu, Oulu University Hospital, and University of Oulu, Oulu, Finland
| | - Annina Sipola
- Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland
| | - Osmo Tervonen
- Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland
- Medical Research Center Oulu, Oulu University Hospital, and University of Oulu, Oulu, Finland
- Unit of Medical Imaging, Physics and Technology Research, University of Oulu, Oulu, Finland
| | - Miika T Nieminen
- Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland
- Medical Research Center Oulu, Oulu University Hospital, and University of Oulu, Oulu, Finland
- Unit of Medical Imaging, Physics and Technology Research, University of Oulu, Oulu, Finland
| |
Collapse
|
16
|
Kallio-Pulkkinen S, Haapea M, Liukkonen E, Huumonen S, Tervonen O, Nieminen MT. Comparison between DICOM-calibrated and uncalibrated consumer grade and 6-MP displays under different lighting conditions in panoramic radiography. Dentomaxillofac Radiol 2015; 44:20140365. [PMID: 25564888 DOI: 10.1259/dmfr.20140365] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES To compare observer performance in the detection of anatomical structures and pathology in panoramic radiographs using consumer grade with and without digital imaging and communication in medicine (DICOM)-calibration and 6-megapixel (6-MP) displays under different lighting conditions. METHODS 30 panoramic radiographs were randomly evaluated on three displays under bright (510 lx) and dim (16 lx) ambient lighting by two observers with different years of experience. Dentinoenamel junction, dentinal caries and periapical inflammatory lesions, visibility of cortical border of the floor and pathological lesions in maxillary sinus were evaluated. Consensus between the observers was considered as reference. Intraobserver agreement was determined. Proportion of equivalent ratings and weighted kappa were used to assess reliability. The level of significance was set to p < 0.05. RESULTS The proportion of equivalent ratings with consensus differed between uncalibrated and DICOM-calibrated consumer grade displays in dentinal caries in the lower molar in dim lighting (p = 0.021) and between DICOM-calibrated consumer grade and 6-MP display in bright lighting (p = 0.038) for an experienced observer. Significant differences were found between uncalibrated and DICOM-calibrated consumer grade displays in dentinal caries in bright lighting (p = 0.044) and periapical lesions in the upper molar in dim lighting (p = 0.008) for a less experienced observer. Intraobserver reliability was better at detecting dentinal caries than at detecting periapical and maxillary sinus pathology. CONCLUSIONS DICOM calibration may improve observer performance in panoramic radiography in different lighting conditions. Therefore, a DICOM-calibrated consumer grade display can be used instead of a medical display in dental practice without compromising the diagnostic quality.
Collapse
Affiliation(s)
- S Kallio-Pulkkinen
- 1 Department of Diagnostic Radiology, Oulu University Hospital, Oulu, Finland
| | | | | | | | | | | |
Collapse
|
17
|
Kallio-Pulkkinen S, Haapea M, Liukkonen E, Huumonen S, Tervonen O, Nieminen MT. Comparison of consumer grade, tablet and 6MP-displays: observer performance in detection of anatomical and pathological structures in panoramic radiographs. Oral Surg Oral Med Oral Pathol Oral Radiol 2014; 118:135-41. [DOI: 10.1016/j.oooo.2014.04.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Revised: 03/21/2014] [Accepted: 04/08/2014] [Indexed: 11/29/2022]
|